tolman



(No Model.) 4 Sheets-Shet 1.

E. TOLMAN.

MACHINE FOR HEATING METALLIC ARTICLES.

(No Model.)

\ E. TOLMAN.

; 4 Sheets-Sheet 2.

MAGHINE FOR HEATING METALLIC ARTICLES.

ral

Patented Jan. 29, 1895.

WITHEES E5 (No Model.) 4 Sheets-Sheet 3.

' E. TOLMAN.

MAGHINE FQ-R HEATING METALLIC ARTICLES.

vN0. 533,383. Patented Jan. 29, 18951 WIT EESES fam (No Model.) 4 Sheets-Sheet 4.

E. TOLMAN. I MACHINE FOR HEATING METALLIC ARTICLES. No. 533,383. Patent Jan. 29, 1895.

L. ,1 WIT E5555 1; 2 I JVEDT I tTED STATES PATENT OFFlCE.

ELIJAH TOLMAN, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO THE REED do BARTON CORPORATION, OF SAME PLACE.

MACHINE FOR HEATING METALLIC ARTICLES.

SPECIFICATION forming part of Letters Fatent No. 533,383, dated January 29, 1895. Application filed July 2, 1894. Serial No. 516,292. (No model.)

To whom it may concern.-

Be it known thatI, ELIJAH TOLMAN, a citizen of the United States, residing at Taunton, in the county of Bristol and Commonwealth of Massachusetts, have invented new and useful Improvements in Machines for Heating Metallic Articles, of which the following is a complete specification.

My invention relates to machines for heating metallic articles, such as blanksfor spoons, where it is necessary to heat the article in certain places only, while the balance of the article is kept cold. I

In the manufacture of spoons after rolling I 5 the blanks, it is preferable to stamp the handles hot so as to preserve the dies and produce amore perfect finish and design. At the same time, the slender shank of the spoon between the handle and bowl must not be exposed to the heat which would anneal it, but it must be left hard as when rolled, so as to avoid bending and to give necessary rigidity to the spoon. To this end, I have devised a machine the details of construction of which 2 5 are hereinafter described.

Referring to the accompanying drawings wherein like letters represent like parts, Figure 1 shows a side elevation of my improved machine. Figs. 2, 3, and 4: show respectively a front elevation, plan, and vertical section of the same.

In my machine, I heat the particular part of the articles desired, in the flame of a blast lamp which plays over them as they are held,

5 one or more, at a time, over a stone hearth. Only the part of the article to be heated is subjected to the flame, and the rest of it is kept cool by allowing that part of it, next the hearth, to rest on a dam, over which cold wa- 4o ter is constantly flowing.

In the drawings, A is the standard which supports the machine. This is made of piping and serves also as a waste pipe to carry off the'overflow from the dam and jackets.

5 B is the blast lamp which can be turned and adjusted as desired, by means of the universal joint I). It is supported on the sliding bracket 1) attached to the frame and can be moved to or from the machine by the handle b as is clearly shown in Fig. 2.

O is the stone hearth over which the flame plays and across which are held the articles to be heated. This hearth is supported on two or more parallel brackets c 0 connected beneath the stone by a bar which has on its under surface two split lugs c 0' through which runs a rod D, parallel to the length of the hearth. These lugs are provided with thumb-screws by which they maybe made to tightly embrace the rod, or by loosening them, the hearth may be'tipped backward or forward, on the rod D. This rod is rigidly secured to the end of a bar H, which is run off at right angles to the rod, and secured to a short shaft h carrying on its other end an oscillating sector I.

The shaft h is supported by the upright g on the frame of the machine, and the sector may be clamped firmly to this upright in any position by the thumb -screw i passing through the-circular slot 1'' in the sector.

The bar H is capable of being slid longitudinally through its connection with the shaft h as shown in Fig. 4.. By all of these adjustments the length, angle, or position of the hearth may be varied at will, and may be adapted to suit the size and shape of the article to be heated.

In front of the hearth and extending along its whole length is the water dam D, which consists of a long narrow, rectangular box, or trough, open at the top and supplied with water at the bottom by means of the pipe E.

The supply of water is regulated by the valve 6, so that it constantly overflows, and the side of the box away from the hearth is made atrifle lower than the other side by tipping it slightly, so that the water will flow over it, as over a dam. On the outside of the dam are placed the fins or gutters d d which carry the overflow water down to one place, instead of allowingit to drip from the entire length of the dam.

The dam is swung on trunnions d cl at each end, bearing in the upright standards F 5 F, which are split as shown, and capable of being clamped tightly to the trunnions by means of the thumb nutsff, in order to hold the dam at any desired angle.

The uprights F F slide in horizontal, par- Ioo allel ways, G G forming part of the frame of the machine, and may be clamped thereto by the nuts f f. Thus the dam may be moved to, or from the hearth, and held. at any desired angle.

On the other side of the dam from the hearth are the clamps, or rests J J, 850., for holding the articles X, to be heated. These, as shown are preferably made fork shaped, and are designed to grip the article between the prongs which may be drawn together and clamped on to the article by the screws j j. These rests aremounted in a row on a bar K, running parallel to the hearth and dam, and which slides to and from the hearth on the parallel ways L L, to which it may be secured at any position, by the thumb nuts Z l. The ways L L are fixed to the under side of the dam D, and hence the rests share any movement or change of angle that may be given to the dam.

The other ends of the articles to be heated, such as the handles of the spoon blanks, as shown, are supported on the other side of the hearth by resting them in niches, or steps m, formed in the plate M, which is dovetailed into the side of the water jacket N. The jacket keeps the plate M cool, and prevents its being burned away. The water is supplied to it by the pipe n.

The plate M with its j acketNis supported like the dam on trunnions 0 0, bearing in split journals 0 O which may be clamped on to the trunnions by the thumb-nuts 0, in order to hold the plate Mand jacket at any desired angle. The uprights having the split journals at the upper ends, consist of two slotted rods or brackets, secured to the frame by the bolts P passing through the slots p, and capable of being slid vertically on the bolts P in order to adjust the height of the jacketed plate M. These brackets O are raised and lowered by racks Q Q, on their outer edges, meshing with the pinions q g on a common shaft R turning in bearings 'r r on the frame of the machine and revolved by the crank r.

The overflow from the dam and the water from the jacket N falls into the tank S, thence through the overflow pipe 3 into the second tank T. The overflow pipe 8 is provided in order to catch in the tank, any particles of metal, as, for instance, silver, when spoon blanks are being annealed, which otherwise might be wasted.

The tank S may be drained if desired by the valve 3'. From the tank T, the water passes by means of the overflow pipe t and the pipe U into the waste pipe A.

I preferably make all connections for wa ter and gas by means of rubber tubing in order to give flexibility to the various adj ustments.

I have shown four clamp rests J for holding the articles, but it is obvious that any number may be used, and my machine is so ar ranged that the bar K maybe easily removed and another substituted, having a different number of rests, and at the same time, the plate M on the other side of the hearth may be easily slid out of its dovetail on the jacket, and replaced by another having its niches corresponding to the new rests J, or having its niches of diiterent shape or depth.

It will be seen that with the use of these various adjustments, although in themselves simple and easily operated, my machine may be adapted to treat a great varieity of articles of different sizes and shapes, and is capable of doing the work with great rapidity, and thoroughness.

I claim- 1. A machine for holding and heating parts of metallic articles provided with a hearth C and a clamp J or series of clamps J J J, in combination with a water receptacle D placed between the said hearth and said clamps, all arranged and operated substantially as described.

2. A machine for holding and. heating parts of metallic articles, provided with a hearth G, a water receptacle D, a clamp J or series of clamps J J, and a blast lamp B at one side of said hearth all arranged and operated substantially as described.

3. A machine for holding and heating parts of metallic articles, provided with a water jacketed niche-supporting plate M, a hearth O, a water dam D, clamp J or series of clamps J J, and blast lamp B, said hearth and dam being placed between the said niche-support ing plate and clamps, all arranged and operated substantially as described.

4. A machine for holding and heating parts of metallic articles provided with a water dam D at one side of and in combination with an adjustable hearth 0 consisting of the stone 0, the brackets 0 having the split lugs c, the rod D, bar H, shaft h, and sector I, all arranged and operated substantially as described.

5. A machine for holding and heating parts of metallic articles provided with an adj ustable water dam D, consisting of the trough D having the pins d, the trunnions d, the uprights F and the ways G at one side of and in combination with a hearth substantially as described.

6. A machine for holding and heating parts of metallic articles provided with an adjustable water dam D and hearth G in combination with adjustable holdersJ J consisting of the forks J, screws j, and adjusting mechanism, said dam being placed between said hearth and said holders all arranged and operated substantially as described.

7. A machine for holding and heating parts of metallic articles provided with an adj ustable water dam D and hearth O in combination with an adjustable supporting plate M provided with adj usting mechanism said sup porting plate and dam being placed on opposite sides of said heart-h arranged and operated substantially as described.

8. A machine for holding and heating parts of metallic articles provided with an adjustable hearth, 0 having at one side an adjust able water dam, D on the other side an adjustable supporting plate, M and adjustable holders at the opposite side of said dam in combination with a blast lamp B at one end of said hearth having an adjusting mechanism substantially as described.

9. A machine for holding and heating parts of metallic articles provided with an adjustable water dam, D and hearth C in combination with an adjustable jacketed supporting plate M having the sliding slotted, supporting brackets 0, the rack Q, and pinion q, shaft R and crank r, all arranged and operated substantially as described.

10. In a machine for holding and heating parts of metallic articles, an adjustable hearth O in combination with an adjustable water dam D having the parallel clamp-supporting ways L whereby the clamps J J move with the dam all arranged and operated substantially as described.

11. In a machine for holding and heating parts of metallic articles, an adjustable water dam D having the parallel ways L in combination with the removable clamp-supporting bar K, all arranged and operated sub stantially as described.

12. In a machine for holding and heating parts of metallic aricles, an adjustable water dam, D, a hearth O and adjustable, removable holders J J in combination with an adj ustable, removablejacketed supporting plate M placed on the opposite side of the hearth to the said holders substantially as described.

13. A machine for holding and heating parts of metallic articles provided with an adjustable Water damD and hearth C in combination With an adjustable supporting plate M providedwith the jacket N and adjusting mechanism arranged and operated substantially as described.

In witness whereof I have hereunto set my hand.

ELIJ AH TOLMAN.

Witnesses:

THEO. P. HALL, BENJ. B. PIERCE. 

